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authorGlauber Costa <gcosta@redhat.com>2008-03-25 22:36:32 +0100
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:19:56 +0200
commit4d92fbf231fe23ec07d18820a141c573a7f5017a (patch)
tree13187ca7d82f2356e22b6ba4a2cef12dcd95d976 /include/asm-x86/dma-mapping.h
parentx86: move alloc and free coherent to common header (diff)
downloadlinux-4d92fbf231fe23ec07d18820a141c573a7f5017a.tar.xz
linux-4d92fbf231fe23ec07d18820a141c573a7f5017a.zip
x86: move dma_map_page and dma_unmap_page to common header
They are similar enough to do this move. the macro version is ugly, and we use inline functions instead. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86/dma-mapping.h')
-rw-r--r--include/asm-x86/dma-mapping.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-x86/dma-mapping.h b/include/asm-x86/dma-mapping.h
index 3ea3802ff1aa..b5a413acac96 100644
--- a/include/asm-x86/dma-mapping.h
+++ b/include/asm-x86/dma-mapping.h
@@ -169,4 +169,18 @@ dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
flush_write_buffers();
}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+ size_t offset, size_t size,
+ int direction)
+{
+ return dma_map_single(dev, page_address(page)+offset, size, direction);
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
+ size_t size, int direction)
+{
+ dma_unmap_single(dev, addr, size, direction);
+}
+
#endif